import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from "../components/login.vue"
import Home from "../components/home.vue"

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home
  }



]

const router = new VueRouter({
  routes
})

//挂载路由导航守卫控制访问权限
router.beforeEach((to, from, next) => {
  if (to.path === '/login') return next()   //login页面直接放行
  const tokenStr = window.sessionStorage.getItem('token')//获取token值
  if (!tokenStr) return next('/login')//当token为空时，返回login
  next()//当token不为空时，直接放行
})

export default router
